Improvement in opera-chairs



W. A. SLAYMAKER.

Opera-Chair. N0, 168,351, Patented 0ct.5,l875.

WITNEEEES INVENTDR 26 M W.A.SLAYMAKER. gacf. C"

UNITED STATEs PATENT OEEIoE.

WILLIAM A. SLAYMAKER, OF LOUISVILLE, KENTUCKY.

IMPROVEMENT IN OPERA-CHAIRS.

Specification forming part of Letters Patent No. 168, 35 l dated October5, 1875; application led December 4, 1874.

To all whom 'it may concern Be it known that I, WILLIAM A. SLAYMA- KER,of Louisville, in the county of Jefferson and State of Kentucky, haveinvented a new and useful Improvement in Opera-Chair; and I do herebydeclare that the following is a full and exact description of the same,refer ence beingV had to the accompanying drawings, and to the lettersof reference marked thereon.

This invention relates to that class of chairs in which the seat portionis pivoted to the side frame, and thus adapted to be turned up into avertical position when desired; and consists, mainly, in uniting thepivots of the seat to the side frame by intermediate swinging links orbars, by means of which the pivots bearings may be located near thecenter of the seat without increasing the width of the side frames, andthus support the weight of the occupant Without undue strain. Itconsists, also, in providing', in connection with the above, the rearend of the seat with suitable means for guiding it properly in itsswinging movement.

In the drawings, Figure l represents a perspective view of my improvedseat, and Fig. 2 an elevation with one side removed.

To enable others skilled in the art to make and use my invention, I willnow proceed to describe fully its construction and manner of operation.

A A represent the side frames, constructed, generally, of any properform and suitable size, and provided with the guide-slots da, as shown.B represents the back portion, rigidly secured between the side framesin any suitable manner. C represents the seat portion, provided near itstransverse center line, but in rear of the same, with the side pivots cc, and at its rear end with the guide-pins c c', adapted to move inslots of the side frames, as shown. D D represent links or bars, bymeans of which the pivots of the seat are suitably united to the sideframes.

The operation is as follows: The seat, when in position for use, issupported in front by its pivots c c and the intermediate bars D D,uniting it to the side frames, and in rear by the guide-pins bearingagainst the upper ends of the guide-slots.

It will be understood that the pivots, by which the seat is mainlysupported, may be located, by means of the intermediate bars, as

Afar forward as may be necessary to best support the weight withoutregard to the width of the side framesa result impossible when thepivots are connected directly to the side frames. When the seat israised it turns upon its pivots into the proper vertical position, itsrear ends being suitably guided by its pins c c and the slots of theside frames, and it being caused also to move inward against the back ofthe seat by the swinging of the intermediate connecting-bars. By meansof this construction it is rendered possible to reduce the side framesin width to the thickness of the seat and back combined when the seat isin its closed position, the chair thus occupying a minimum amount ofspacea matter of practical importance in this class of chairs.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The combination of the pivoted seat, side frames, intermediate links orbars, and the guiding pins and slots, substantially as defscribed.

This specification signed and witnessed this 26th day of October, 1874.

W. A. SLAYMAKER.

Witnesses K. KEMIER, FRANCIS A. KERRY.

